Machine for operating on heels.



H. W. KENWAY. MACHINE FOR OPERATING 0N HEELS.

APPLIQATION FILED SEPT. 25, 1911.

Patented Dec.2, 1913.

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TED sTATEs PATENT oEEroE.

HERBERT W. KENWAY, OF-NEWTON, MASSACHUSETTS, nssrenon, To UNITED srroEMACHINERY GOMPANY, or PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

. {MACHINE FOR OPERATING ON HEELS.

Specification of Letters Patent.

Patented Dec. 2,1913.

tain Improvements in Machines for Operating on Heels, of which thefollowing description, in connection with the accompany ing drawings, isa specification, like refer ence characters on the drawings indicatinglike parts in the several figures.

This lnventlon relates to lmprovements in machines for operating onheels and is: herem described as embodled 1n a heel PIlCking machine.

An object of the invention is to simplify the construction of prickingmachines and improve their operation. upon heels which it is desired toattach by nails driven inclined longitudinally of the heel and whichaccordingly must be pricked obliquely.

Heretofore it has been customary to hold a heel blank between twoheel-engaging members the effective faces of which are disposed at aninclination to the path of the awls. It has been found desirable toshape the inclined faces of both the heel holding members to coincide intheir inclination with the tread and heel seat surfaces of the heel tobe operated upon. The face of the member against which the heel isforced during the working stroke of the awls must be properly shaped tohold the heel against slipping or tilting during this operation or elsethe awl holes will take a wrong direc-' tion, and the face of the dieplate through which the awls reciprocate must also be shaped properly toprevent movement of the heel during the stripping or withdrawal of theawls as otherwise the awls will be bent and are likely to be broken orthe lifts of the heel pulled apart. Moreover, if afair hear ing is notafforded for both surfaces of the heel when it is subjected to-pressure.pre liminarily to the pricking operation, .as is customary, the heel islikely to be distorted: Heretofore the desired shape has been given tothe die plate by grinding off on a bevel its' effective work-engagingface. By this ex+ pedient satisfactory operation is secured in dealingwith heels having a given shape but if it is desired to operate uponheels of a dife ferent shape, or to vary the inclination of the awlholes inthe heel it is necessary to substitute a hew 'die: plate havingits face ing upon its breast surface.

gang of awls 16 set in the awl plate 18.

ground to a correspondingly different bevel.

An important feature of the present invent-1011, accordingly, consistsin the provislon of an auxiliary heel-engaging stop or abutmentinterposed. between the work-e'ngaging face of the die plate and theproximate surface of the heel blank whereby the heel may be held at aninclination to the face of the die platev and the awl passages therein.

Another feature of the invention consists in the provision of a novelform of adjusting means whereby the angle between the face of the dieplate and the proximate surface of the heel may be varied and the angleof the awl holes correspondingly regulated. As herein shown, theadjusting means comprises a wedge-shaped member movable relatively tothe die plate and supporting the heel engaging stop, thestop beingadjusted by the movement of the wedge-shaped member to hold the rear endof the heel at different distances from the plate.

For purposes of illustration the invention will now be described asembodied in a pricking machine substantially of the type disclosed incopending application Serial No. 591,314, filed November 5, 1910, uponan invention of John E. Glidden, although the present invention is notlimited to this type of machine but has a more general application.

In the drawings: Figure 1 is a view in side elevation of the operatingparts of a pricking machine showing a heel blank in which the awls areinserted, and Fig. 2 is a plan view partially in section on the line 22of Fig. 1 of the part shown in Fig. 1.

As shown in the drawings the machine comprises a head 10 in which isremovably received the follower plate 12 having a curved and inclinedface shaped to fit the heelseat surface of the heel blank 50 stand-Oppositely disposed with respect to the follower plate 12 is theperforated die plate 14: having a substantially vertical work-engagingface and horizontal awl passages inwhich work ha T e heel blank 50 restsupon a bottom plate 20 which extends outwardly toward the front of themachine affording. convenient means for inserting successive blanks inoperative position. The heel is positioned laterally by forkediyoke 22adjac'ent to theface of the die plate. Means, not shown, are providedfor advancing the follower plate 12 to engage the heel blank 50 betweenitself and the die plate 14, the arrangement being such that, after theheel has been engaged, relative movement of the awls and die plate takesplace whereby the awls are forced into the heel blank. The means foradvancing the head. 10 and causing relative movement of the die plateand awls are not illustrated herein as they form no part of the presentinvention. They are, however, fully illus trated and described in theco-pending application above identified to which reference may be hadfor details of construction.

In order to hold the heel blank inclined with respect to the surface ofthe die plate 14: and the awls 16 the stop 30 is arranged to projectfrom the surface of the die plate adjacent to the rearmost awl andoutside the line of the awls where it will engage the tread surface ofthe heel blank at its rear end. The stop 30 is provided with a flattenedhead for engaging the heel and a bifurcated shank which is slidinglyreceived within a recess in the die plate 14;, as shown in Fig. 2. Thestop is rigidly supported by the transversely extending bar 32 whichpasses between the sides of its shank.

The supporting bar 32 may be utilized in efiecting adjustment of thestop 30 and to this end the rear surface of the stop is made wedgeshaped and arranged to contact with a correspondingly inclined surfaceformed on the bar 32. Any convenient means may be employed to shift theposition of the sup porting bar. As herein shown a headed adjustingscrew 36 is threaded into one end of the bar and fitted with collars oneither side of the plate 38 so that one turn ofthe screw will move thebar through a distance equal to the pitch of the screw thread.

In order to retract the stop 34 there is provided in one face of the bar32 an inclined slot 35 disposed parallel to the wedge face of the barand into the slot 35 projects a short retaining stud 37 from the innersurface of one of the bifurcated arms of the stop. It will be seen,therefore, that by movement of the bar toward the right in Fig. 2 thestop is forced outwardly by the action of the wedge face of the bar,while on movement of the bar toward the left the stop is retracted bythe action of the inclined slot 35 on the retaining pin 37.

In operation a follower plate 12 having the desired shape is fitted intothe head 10, a heel blank is placed in position and the stop 30 isadjusted to bear fairly upon the rear end of the heel when the latterrests upon the follower plate. Having made this preliminary adjustmentthe machine is in readiness to operate uniformly and accurately andwithout bending of the awls or distortion of the blanks. Should it bedesired to vary the inclination of the awl holes in the heel blank afollower plate of different shape may be fitted in the head 10 and acorresponding adjustment made in the position of the stop 30.

In the machine of the application above identified the pricking andstripping operations are effected by movement relatively to the awls ofthe head 10 and die plate 14 with the heel blank held between them butthe present invention may be embodied with good advantage in machines inwhich the heel seat engaging member is stationary and the die plate andawls movable relatively thereto.

Having thus described my invention what I claim as new and desire tosecure'by Letters Patent of the United States is 1. A machine foroperating on heels having means for adjustably holding heels inpositions of different inclinations comprising, in combination, a dieplate provided with awl guiding passages disposed at right angles to itswork-engaging surface, a gang of awls operating in said passages, andmeans disposed out of line with the guiding passages for engaging thetread face of a heel at its curved end and holding it away from thesurface of the die plate while the breast end of the tread face bearsupon the work-engaging surface of the die plate.

3. A machine for operating on heels having, in combination, a gang ofawls, means for supporting a heel blank obliquely with respect to saidawls so that the heel may be pricked obliquely, and means for preventingdisplacement of the heel while the awls are being stripped therefromincluding a stop disposed without the rearmost awl and arranged toengage the rear curved end of the tread face of the heel.

4. A machine for operating on heels, having, in combination, relativelymovable awls and die plate, and an inclined work support, said die platehaving a work-engaging face disposed perpendicularly to said awls, and astop projecting from said face to maintain the proximate face of theheel at an inclination to said awls, the efiective face of the stopbeing relatively inclined with respect to the work support.

5. A machine for operating on heels, having, in combination, relativelymovable awls and die plate, said die plate being arranged to engage thetread surface of a heel blank near one end, and a member interposedbetween said die plate and heel and located out of line with the awlsfor holding the other end of said tread surface away from the surface ofthe die plate.

6. A machine for operating on heels, having, in combination, relativelymovable aWls and heel seat plate, said plate having its work-engagingface oblique to the path ofrelative movement, an interposed die platehaving its face toward said heel seat plate perpendicular to the path ofrelative movement of the awls and heel seat plate, and a heel engagingdevice projecting from said surface of the die plate, having a workengaging face of less area than the face of the heel and serving to holda heel blank in engagement with said oblique heel seat plate withoutdisplacement during the operation of stripping the awls.

7 A machine for operating on heels, having, in combination relativelymovable awls and die plate, said die plate having a work engaging faceand a work engaging stop projecting from said face, the stop beingsupported within the face of said die plate, and having its effectivesurface disposed substantially parallel to the face of the die plate.

8. A machine for operating on heels, having, in combination relativelymovable awls and die plate, and a work support inclined with respect tothe path of the awls, said die plate having a work engaging face and anadjustable work engaging stop projecting therefrom, and having itseffective surface inclined with respect to the work support.

9. A machine for operating on heels, having, in combination relativelymovable awls and die plate, said die plate having a work engaging face,a stop associated with the die plate and having a work engaging portionand a wedge shaped surface and an adjustable wedge member for supportingsaid stop.

10. A machine for operating on heels, having, in combination relativelymovable tools and die plate, said die plate having tool guiding passagestherein, a work engaging stop mounted in said die plate, and means forpositively adjusting said stop relatively to the die plate in thedirection of the tool guiding passages, whereby the work may besustained in different positions relatively to the path of said tools.

11. A machine for operating on heels having means for adjustably holdingheels in positions of different inclinations comprising a plate, awedge-shaped member arranged for adjusting movement in a pathsubstantially parallel to the surface of the plate and in a directionlongitudinally of the heel, and a heel engaging device supported by thewedge-shaped member and adjusted by the 'movement thereof to hold therear end of the heel at different distances from the plate.

12. A machine for pricking heels having a vertically disposed die plate,a follower movable horizontally to engage a heel presented breast downto the machine and press it against the die plate, and an adjustablestop for engaging the rear end of the heel and tipping it aWay from thedie plate at one end, the heel bearing obliquely at its other end on thedie plate.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HERBERT W. KENVVAY.

Witnesses:

FRED. WV. GUIBORD, ARTHUR L. RUSSELL.

Gopies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

